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Efficient Sliding Window Algorithm: O(n) Solution with Functional Queues

2025-02-24

This article presents an efficient algorithm for solving sliding window problems using functional programming techniques. By constructing functional queues based on two stacks and leveraging the properties of monoids, the algorithm calculates various statistics of sliding windows, such as maximum, minimum, or sum, in O(n) time. The article details the implementation of monoidally-annotated stacks and queues, provides code examples, and concludes with several related algorithmic challenges.

(byorgey.github.io)

Development sliding window

25 Years Later: The Untold Story of the Mac OS X Dock

2025-01-06

25 Years Later: The Untold Story of the Mac OS X Dock

This blog post recounts the experiences of James Thomson, an early engineer on the Mac OS X Dock. He details his time working on the Dock at Apple in Ireland, including the initial design process, interactions with Steve Jobs, and his eventual departure from Apple. The story is filled with tension and intrigue, including secrecy surrounding the project, Jobs's demands about the engineer's location, and the challenges and triumphs Thomson faced during development. The post offers a fascinating glimpse into the creation of a pivotal piece of Mac OS X, and the journey of a software engineer.

(tla.systems)

Development

Open Source License Dispute: A Fight for Software Freedom

2025-02-13

The Software Freedom Conservancy (SFC) filed an amicus brief supporting a downstream licensee's right to remove “further restrictions” under the Affero General Public License version 3 (AGPLv3) Section 7 in the ongoing Neo4j, Inc. v. PureThink, LLC case. The core issue revolves around whether Neo4j's added “Commons Clause” can be removed. SFC argues that downstream licensees have the right to remove such restrictions under AGPLv3 Section 7, paragraph 4, even if imposed by the original licensor. SFC's brief provides detailed legal analysis of AGPLv3 Sections 7 and 10, arguing that the lower court wrongly sided with Neo4j's interpretation, which could fundamentally alter the community's understanding of adding and removing “further restrictions.” The ruling will have significant implications for software freedom and users' rights.

(sfconservancy.org)

Development legal dispute

Quickwit Acquired by Datadog: A Multi-Petabyte Search Engine's Cross-Continental Journey

2025-01-10

Quickwit Acquired by Datadog: A Multi-Petabyte Search Engine's Cross-Continental Journey

Quickwit, a multi-petabyte scale open-source search engine built by three engineers over four years across three continents, has been acquired by Datadog. This post details Quickwit's journey from an idea conceived in a Parisian gyoza restaurant to its acquisition. Overcoming challenges of cross-border collaboration, they built a highly efficient and manageable search engine using Rust, partnering with companies like Binance and Mezmo to achieve success. The acquisition marks a new chapter for Quickwit, which will continue as an open-source project under the Apache License 2.0, bringing new features.

(quickwit.io)

Development

Microsoft Unveils Phi-4: A Small Language Model Excelling in Complex Reasoning

2024-12-15

Microsoft Unveils Phi-4: A Small Language Model Excelling in Complex Reasoning

Microsoft has introduced Phi-4, a new 14-billion parameter small language model (SLM) that outperforms larger models in complex reasoning tasks, particularly in mathematics, surpassing even Gemini Pro 1.5 on math competition problems. This achievement is attributed to high-quality synthetic and organic datasets and post-training innovations. Currently available on Azure AI Foundry under an MSRLA, Phi-4 will launch on Hugging Face next week. Microsoft emphasizes its commitment to responsible AI development, integrating robust safety features into Phi-4's design and deployment.

(techcommunity.microsoft.com)

AI small language model complex reasoning

Elegantly Solving the Problem of Anchor Links on Extremely Long Pages

2025-04-03

Elegantly Solving the Problem of Anchor Links on Extremely Long Pages

This article tackles the problem of anchor links failing to scroll to the correct heading on very long pages. The author explores several solutions, starting with simple padding adjustments, then shifting trigger lines, and finally employing a sophisticated approach involving virtual headings and an optimization algorithm. A cubic polynomial function ensures smooth transitions, addressing issues of layout and user experience. The optimal solution balances maintaining original heading positions with preserving section spacing, resulting in a robust and elegant solution for extremely long pages.

(thirty-five.com)

Development

Calibre 8.0 Released: Enhanced Kobo Support and More

2025-03-21

Calibre 8.0 is here, boasting significantly improved Kobo support! It now natively edits, views, and converts KEPUB files, automatically converting EPUB to KEPUB when sending to Kobo devices (configurable via the Kobo icon). New features include connecting to folders (ideal for Chromebooks), a revamped ToC editor, updated macOS icons, and numerous bug fixes. Previous 7.x releases introduced exciting additions like an audio overlay tool, automatic PDF header/footer removal, drastically faster EPUB opening, and the new Piper neural network TTS engine, enhancing reading and editing workflows.

(calibre-ebook.com)

Development e-book update

LLMs: A Double-Edged Sword?

2025-02-09

LLMs: A Double-Edged Sword?

Technologists and publicists are raving about how Large Language Models (LLMs) will revolutionize how we work, learn, play, communicate, create, and connect. They're right that AI will impact nearly every facet of our lives and that LLMs represent a giant leap forward in making computing accessible to everyone. However, alongside the benefits, AI will also flood our information environment with unprecedented levels of misinformation.

(thebullshitmachines.com)

AI Information Overload

Citizen Science: Analyzing Satellite Imagery of the Palisade and Eaton Fires

2025-01-09

Citizen Science: Analyzing Satellite Imagery of the Palisade and Eaton Fires

This project analyzes the Palisade and Eaton fires in Southern California in January 2025 using imagery from GOES-16 and GOES-18 satellites. Reprojected data is downloaded from UW SSEC's RealEarth program; each image is 128x128 pixels, centered at (34.1, -118.4), with 1.0 km pixels. The code combines data from both satellites for increased resolution and currently measures hotspot areas. This project showcases the accessibility of citizen science, demonstrating how publicly available data can be used for scientific research.

(github.com)

Tech satellite imagery analysis citizen science fire monitoring

US Mines Hold the Key to Critical Mineral Independence

2025-09-19

US Mines Hold the Key to Critical Mineral Independence

A new study reveals that US mines already produce all the critical minerals needed annually for energy, defense, and technology, but these minerals – including cobalt, lithium, gallium, and rare earths – are currently discarded as byproducts of other mining operations. Researchers found that improving recovery rates offers significant economic, geopolitical, and environmental benefits, reducing waste and opening opportunities for reuse. The challenge lies in developing economically feasible recovery methods, requiring further research, development, and supportive policies.

(www.minesnewsroom.com)

Tech US mining

eBPF and Container Runtimes: Connecting via the CRI

2025-07-11

This article explores how open-source eBPF projects connect with container runtimes (CRs) using the Container Runtime Interface (CRI) to enrich context with pod and container information. It details the connection process: locating the Unix socket file, establishing a gRPC connection using the CRI API, and querying information. Examples from Tetragon, crictl, and Tracee illustrate different approaches to connecting to the CR, including hardcoded default socket paths and runtime connection attempts. Finally, it demonstrates querying container information like cgroup paths using the CRI API, such as Tetragon's method for retrieving a container's cgroup path.

(h0x0er.github.io)

Development Container Runtime

Rick in 240 Lines of Code: A Stunning GLSL Animation

2025-02-06

Rick in 240 Lines of Code: A Stunning GLSL Animation

This article details the author's eight-month journey creating a breathtaking Rick animation using only 240 lines of GLSL code, no libraries, and no images. The author embeds a live coding editor within the post, allowing readers to program their own animations. The process is explained step-by-step, from basic color fills to using signed distance functions (SDFs) like Bézier curves, stars, and rounded rectangles to meticulously craft Rick's features and hair. Noise functions and time domain warping bring dynamic effects to Rick's hair and add random eye movements. The author shares various animation techniques, including looping values, switching drawn content, and noisy movement, providing complete code and explanations to empower readers to create their own GLSL animations.

(danielchasehooper.com)

Design code art

Personal Digital Archives: Unique Data Treasures in the Age of AI

2025-03-19

Personal Digital Archives: Unique Data Treasures in the Age of AI

In her latest bi-weekly newsletter, Linda explores the value of personal digital archives. She argues that in today's age of generative AI tending toward mediocrity, these archives, containing unique personal experiences, preferences, and perspectives, become valuable resources for training AI models and creating more personalized works. The article uses the author's own experience of collecting books, images, and links as an example, and combines the perspectives of historians to illustrate the importance of personal archives in the age of AI. Several examples of personal archives in Finland are also given. Finally, the author calls on readers to share their own collected items and stories, showcasing the richness and unique charm of personal archives.

(helloruby.substack.com)

AI Data Personal Archives

SEC's X Account Hijacked in Bitcoin Pump-and-Dump Scheme

2025-02-12

SEC's X Account Hijacked in Bitcoin Pump-and-Dump Scheme

An Alabama man pleaded guilty to identity theft and access device fraud for hijacking the US Securities and Exchange Commission's (SEC) X account to artificially inflate Bitcoin's price. He and his co-conspirators falsely claimed the SEC approved Bitcoin ETFs. Bitcoin's price surged before plummeting after the SEC's chairman debunked the claim. The hack exploited SIM swapping, a social engineering technique to gain control of accounts. This case highlights the vulnerability of cryptocurrency markets and the dangers of SIM swapping.

(gizmodo.com)

Tech SIM Swapping

Raised by Wolves: Ambitious Sci-Fi, Cold Emotion

2025-08-11

Raised by Wolves: Ambitious Sci-Fi, Cold Emotion

HBO Max's "Raised by Wolves" is a wildly ambitious sci-fi series tackling themes of faith and parenting on a biblical scale. Set in a war-torn future, android parents attempt to raise human children on a distant planet, with only one surviving after 12 years. Meanwhile, human parents bond with a child during a long space voyage, only to discover it taken by the android mother upon arrival. The series unfolds with complex plotlines, initially focused on world-building, with a somewhat cold emotional tone. However, later episodes reveal more compelling storytelling. While emotionally distant, its original premise and exploration of faith make it a worthwhile watch for sci-fi fans.

(www.rogerebert.com)

Tech androids faith

Magic Todo: AI-Powered Smart To-Do List

2025-03-24

Magic Todo is a smart to-do list app that not only lets you record tasks like a regular to-do list but also automatically breaks down tasks into steps based on a spiciness level (🌶️) you set. The spicier, the more detailed the breakdown. It auto-categorizes top-level tasks with emojis and offers filtering by category or completion status. Each item provides edit, delete, add subtask, and estimation features, with drag-and-drop reordering. Additional features include device synchronization, export options, undo/redo, and bulk actions.

(goblin.tools)

Development To-Do List Task Management

Ocean Bacteria's Nanotube Networks: A Revolutionary Discovery of Microbial Interconnectivity

2025-01-27

Ocean Bacteria's Nanotube Networks: A Revolutionary Discovery of Microbial Interconnectivity

A groundbreaking discovery reveals complex networks of bacterial nanotubes connecting the most abundant photosynthetic bacteria in the ocean, Prochlorococcus. These nanotubes act as tiny bridges, linking the inner spaces of bacterial cells and facilitating the exchange of nutrients and information. This challenges the traditional view of bacteria as isolated individuals, demonstrating a far more interconnected microbial world than previously imagined. This interconnectivity may have profound implications for Earth's oxygen and carbon cycles.

(www.quantamagazine.org)

Tech bacterial nanotubes marine microbes intercellular communication

Web Server Listen Overflows Traced to a Linux Kernel Performance Issue

2025-02-14

Upgrading web servers from CentOS to Ubuntu led to listen overflow errors. Investigation revealed a system CPU spike on newly booted Ubuntu hosts within minutes of startup, causing slow web request processing and subsequent listen overflows. The culprit was inode cgroup switching in the Linux kernel; after writing many files, the kernel spent significant time moving inodes between cgroups. Disabling the io or memory controllers in systemd resolved the issue. CentOS was unaffected as it uses cgroups v1, unlike Ubuntu's cgroups v2. A minimal reproduction script was created to demonstrate the issue.

(dasl.cc)

Development Performance Issue

ISO 8583: The Secret Language of Credit Cards

2024-12-18

ISO 8583: The Secret Language of Credit Cards

Every time you tap your card or pay online, you're interacting with the ISO 8583 protocol. This 1987 standard defines the format of real-time transaction messages between banking networks. It includes core fields like message type indicators, bitmaps, and data elements, but networks vary in their extensions and serialization, leading to compatibility challenges. This article delves into the complexities of ISO 8583's structure, field encoding, nested message handling, and demonstrates building a robust ISO 8583 parser to handle network variations and error scenarios.

(increase.com)

Development credit card payments data parsing

The SaaS Private Deployment Trap: A Cautionary Tale

2025-03-18

This post explores the pitfalls of offering private deployments for SaaS platforms. While lucrative, private installs come with significant operational and support burdens. The author argues that they transform SaaS vendors into ops or helpdesk organizations, requiring substantial resources to maintain customer-specific environments. The article advises against private deployments unless absolutely necessary, suggesting managed hosted deployments and careful contract terms and pricing to mitigate risks.

(blog.lusis.org)

Development Private Deployment Operational Costs

Why North England Remains Economically Depressed: A Historical Perspective

2025-01-25

This article delves into the deep-seated reasons behind North England's economic underperformance, arguing it's not simply an economic issue but a consequence of historical power structures and political decisions. From the Norman Conquest to the Thatcher era, power has been concentrated in the South, leading to chronic underinvestment and resource disparities in the North. The author highlights the South's consistent neglect and preferential treatment, coupled with a lack of regional power balance, as crucial factors in the North's economic stagnation. Despite this bleak picture, the article expresses optimism about the North's future, suggesting that reforming power structures and resource allocation is key to reversing the trend.

(tomforth.co.uk)

Startup UK Economy Regional Development Centralization of Power

Bun: Why Package Installs Are 7x Faster Than npm

2025-09-11

Bun package manager is renowned for its blazing speed, averaging ~7x faster than npm, ~4x faster than pnpm, and ~17x faster than yarn. This isn't magic; Bun treats package installation as a systems programming problem, not a JavaScript problem. It achieves this through minimizing system calls, caching manifests as binaries, optimizing tarball extraction, leveraging OS-native file copying, and scaling across CPU cores. The article delves into how Bun, written in Zig, bypasses Node.js's limitations (thread pool, event loop) to achieve incredibly fast package installations.

(bun.com)

Development

Deconstructing Zork: A Deep Dive into 15,000 Lines of 80s Game Dev

2025-01-20

Deconstructing Zork: A Deep Dive into 15,000 Lines of 80s Game Dev

Rok Ajdnik, in a whimsical quest to test a Kubernetes cluster, embarked on a journey through the 15,000 lines of code that comprise the classic text adventure game, Zork. This article details Zork's evolution across different versions, its ZIL programming language, and its ingenious architecture, including the parser, game objects, syntax, and object tree. Hidden gems are unearthed, such as easter eggs (XYZZY), questionable commands (RAPE), and intentionally trollish mechanics. The author also shares progress on porting Zork to Go.

(medium.com)

Game Game History

Rust Standard Library on Apache NuttX RTOS: LED Blinky and Beyond

2025-01-27

Rust Standard Library on Apache NuttX RTOS: LED Blinky and Beyond

This article details building applications using the Rust standard library on the Apache NuttX real-time operating system. It covers JSON handling with Serde, asynchronous functions with Tokio, and LED control with the Nix crate. The author explains the difference between owned and raw file descriptors in Rust and compares the Nix and Rustix POSIX binding crates. Detailed steps for building and running Rust applications on NuttX, along with troubleshooting tips, are provided.

(lupyuen.org)

Development

Japan's $33 Billion Gamble on Chip Manufacturing

2024-12-18

Japan's $33 Billion Gamble on Chip Manufacturing

Japan is investing $33 billion in building semiconductor factories in remote areas like Hokkaido, aiming to reclaim its dominance in the chip industry. This has created a construction boom and attracted a large workforce, a stark contrast to the region's relatively sluggish job market. The ambitious project is a high-stakes gamble, but reflects Japan's determination to return to the forefront of technological innovation.

(www.bloomberg.com)

Tech chip manufacturing Japanese investment

Graphite: Your Open-Source 2D Creative Powerhouse

2025-03-09

Graphite: Your Open-Source 2D Creative Powerhouse

Graphite is a free and open-source vector and raster graphics engine currently in alpha. It boasts a fully nondestructive workflow combining layer-based compositing with node-based generative design. Evolving beyond a simple vector editor, Graphite's game-engine-like architecture offers a comprehensive toolbox for photo editing, motion graphics, digital painting, desktop publishing, and VFX compositing. Graphics programmers and Rust developers are encouraged to contribute, and donations are welcome to support its continued development. Graphite aims to become an industry-standard art and design tool, empowering creators of all levels.

(github.com)

Development graphics engine 2D creation

SQLite-Backed Key-Value Store with JS-Like Object Manipulation

2024-12-22

SQLite-Backed Key-Value Store with JS-Like Object Manipulation

A GitHub project introduces a key-value store built on SQLite, enabling JavaScript-like object manipulation with automatic JSON serialization. The `createDatabaseClient` function creates a parallel client with separate reader (`rdr`) and writer (`wtr`) components. The writer utilizes proxies for partial JSON updates, while the reader returns plain JavaScript objects. Comprehensive tests cover basic CRUD operations, nested updates, deletions, and array manipulations.

(gist.github.com)

Development key-value store JSON serialization

Pump: AI-Powered Cloud Cost Optimization Saving You 60%

2025-03-20

Pump: AI-Powered Cloud Cost Optimization Saving You 60%

Cloud spending hits a staggering $500 billion annually, the fastest-growing expense for tech companies. Pump offers an AI-powered platform automating savings and leveraging group buying to slash cloud costs by up to 60%. Backed by Y Combinator, Pump's experienced team is building a transparent, collaborative, and fast-paced company culture focused on success.

(www.ycombinator.com)

AI Cloud Cost Optimization Group Buying

Decentralized Push Notifications: Escaping the Centralized Trap?

2025-02-04

This article explores how mobile push notifications introduce centralization to decentralized services and how to avoid it, even for mainstream configurations. Many decentralized apps (e.g., Mastodon, Nextcloud) currently rely on Firebase Cloud Messaging (FCM), leading to centralization. The article proposes a solution: directly using the WebPush protocol to communicate with FCM servers, combined with the UnifiedPush framework, to achieve decentralized push notifications. This eliminates the need for centralized gateways and allows users to choose their preferred services. While not all services will immediately support WebPush, the future trend is towards decentralization.

(unifiedpush.org)

Development push notifications

Decompilation's Resurgence: A Look Back at 2024

2025-01-30

2024 marked a significant resurgence in decompilation research. Academic publications from that year comprised nearly 30% of all top-tier publications ever in the field. This post summarizes the academic and ideological advancements in decompilation during 2024. A surge in academic papers occurred, with four focusing on defining 'good' decompilation and four exploring AI's role, including symbol prediction and code simplification. Nearly all papers included open-source implementations, fostering industry adoption. The year also saw a tour by decompilation pioneer Dr. Cristina Cifuentes and a prominent expert panel at Recon 2024, further driving the field forward.

(mahaloz.re)

Development decompilation

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